What are the factors that affect the sound insulation effect of doors?

First, the sound absorption function of wooden furniture is good.

Furniture is the most natural absorption and diffusion in the room, especially wooden furniture works best. Its fibrous porosity allows it to absorb noise and reduce noise pollution. Different woods have different levels of sound absorption, and softer woods, such as pine, absorb sound better.

In addition, do not place large glass cabinets that reflect too strongly on sound waves, metal paintings that are easy to cause vibration, and lightweight ornaments and displays, and when placing books or CD discs, they should also be undulating and staggered, so as to increase the reflective surface and produce diffusion effect. If you place the bookcase in front of a wall adjacent to your neighbor's house, you can properly block out the sound coming from your neighbor's house.

Second, the quality of the door panel determines the sound insulation effect.

Each door has some soundproofing, but the effect varies greatly. In addition to the sealing of the door after closing, the quality of the door panel is also very important, and the sound insulation effect of the door panel mainly depends on the filling of the inner core of the door. Generally speaking, the inner core of the molded acoustic door is filled with a honeycomb structure of paper base, and the closed air layer it forms can play a good role in sound insulation.

And the inferior door panels, just a few partitions are made with cardboard in the hollow core, and the sound insulation effect is very poor. In addition, the inner core of the door is better soundproofed by using particleboard. For solid wood doors and solid wood composite doors, the higher the density of the wood itself, the heavier the weight, and the thicker the door panel, the better the sound insulation effect, the easier it is to reduce noise pollution.

3. Rough walls can reduce noise pollution.

If the walls are rough and too smooth, the room will easily generate echoes, which will increase the volume of noise. Therefore, you can choose decorative materials with better sound-absorbing effect such as wallpaper, and you can also use decoration materials such as cultural stones to reduce noise pollution, make the surface of the wall rougher, and make the sound waves refracted many times, which can reduce the noise. In addition, walls and ceilings can be made of soundproof materials, such as mineral wool sound-absorbing panels.

For larger households, a layer of gypsum board can be added to reduce noise. For smaller households, the walls can be separated by unequal geometric shapes of solid wood and then covered with cork.

Soundproof doors and windows need to be opened, compared with the wall, it is relatively light and thin, and there are opening parts sealed, etc., forming an overall soundproof bottleneck. Ordinary glass and insulating glass are inefficient in sound insulation due to the penetration of sound waves and the acoustic wave cosmosis effect and resonance trough of ordinary insulating glass. Laminated sound insulation window, for different noise sources, the system considers all the factors that affect the sound insulation effect, selects different profiles and different combination glasses in a targeted manner, and fully considers the needs of different users.

1. The stiffness of the profile frame should be high and the degree of sealing should be good.

2. It is made of double-layer or multi-layer glass, and the glass plate should be tightly embedded in the elastic pad to prevent the vibration of the damping plate surface.

3. The surrounding frame should be used for sound absorption treatment.

4. Glass of different thicknesses should be selected in order to stagger the frequency of the anastomosis effect and weaken the influence of the anastomosis effect.

5. It is necessary to choose high-strength brand door and window profiles and hardware to make the soundproof windows achieve a longer service life. Installing soundproof windows can make your existing indoor noise meet or exceed the country's quietest environmental standards.

Generally speaking, the building exterior window products produced by formal enterprises with production license management qualifications have certain sound insulation functions, but the key to the specific sound insulation effect lies in the window sealing. Tightness refers to the degree of sealing of the window, including the sealing of the glass and the frame; The sealing of the bezel and frame after the window is closed, and the sealing of the window and wall after installation, all of these factors affect the sealing performance of the window. In addition, the hollow structure of the glass also has an impact on the sound insulation.

The thicker the glass used, the better the sound insulation of the windows, and vice versa. As for the impact of the glass material used on the sound insulation effect, it is difficult to estimate. They have little impact on the impact of profiles and opening methods on sound insulation, because there is no special agency to measure the impact of these two aspects on sound insulation, so there is no degree of measurement.

The best ways to insulate doors are by using sealant strips, soundproofing cotton, cardboard, installing interior doors, and replacing doors.

1. Use seals.

Due to the need for door activity and the nature of the material, no matter how carefully installed the door and door frame will leave a gap, so that it is not completely sealed, and noise will penetrate into the room from this gap. Therefore, the size of the gap can be measured in advance, and the corresponding sealing strip can be purchased according to the measured size, and pasted on the gap to achieve the effect of sound insulation.

2. Use soundproof cotton.

The vibration of an object produces a sound, and the sound travels through the air. Cotton has a multi-fiber structure, and when sound passes through cotton, it is reflected by countless fibers, superimposed on each other, and collided. The energy of the sound waves is converted into heat, which weakens the intensity and eventually disappears.

The sound insulation function of sound insulation cotton is related to the material fiber and open space structure, it can be said that the real sound insulation effect of sound insulation cotton is sound absorption, so that sound waves are consumed inside, which is different from high-density sound insulation materials, which are soundproofed by reflecting sound waves. The size data of the door can be measured, and the soundproof cotton can be pasted on the door surface, so as to achieve the maximum effect of sound insulation and noise reduction.

3. Use cardboard.

Dividing the cardboard into a honeycomb-like structure and filling it into the door panel has two advantages, on the one hand, it increases the strength of the door panel and is not easy to go wrong. On the other hand, the closed air layer formed by the honeycomb structure can play a certain degree of sound insulation, which can greatly reduce the penetration of sound.

4. Install the inner door.

The installation of the inner door is actually to add a double layer of protection at the sound insulation level, and the effect is also better. In other words, by installing the inner door inside the outer door, the sound insulation effect of the two doors is actually better, although it is time-consuming and labor-intensive, but it can reduce the noise.

5. Change the door.

You can directly change to a soundproof door. The soundproofing of the door is related to the thickness. The denser the wood, the heavier the weight; The door will also be thicker, so the thicker the door, the better the sound insulation.

But it should be noted that the thickness between 40-50mm is optimal, once it exceeds 50mm, it will have high requirements for the hardware of the door.

Noise is formed by the refraction of sound from smooth objects after it reaches the room. In order to make the noise less easy to spread, choosing a patterned door is also a way to reduce the noise.

Even if it is a first-class soundproof door, it needs to be installed seamlessly, and poor installation will also affect the sound insulation effect. Therefore, it is advisable to have a professional install the door and door casing. In this way, the door and door gap can be better installed densely to avoid noise interference.

The plastic steel soundproof door has a variety of styles, the special material has a modern fashion and concise sense, the plastic steel soundproof door is mainly white, and there are also colored profiles, so that the decoration has more free space.

<>Generally, the living room door is our most important door, so it is also called an anti-theft door. Generally, when we buy a commercial house, the construction party has already installed the entrance door, and the door is a very important place when the living room is decorated. Solid wood frame, veneer or MDF, lacquer.

If the quality of the paint door is not good, it is easy to change color for a long time. There are more solid wood veneer doors, which are economical.

Interior doors are heavier the better, as long as it is not a black-hearted merchant to pour cement or something, the heavier the door indicates that the material is thick, and there is the paint process, the paint is generally divided into closed paint and open paint two kinds, the so-called closed paint is the paint surface feels smooth to the touch, the texture is delicate, and the paint door can not be scrubbed with steel wool balls when cleaning the paint door, otherwise it will scratch the door panel; Gravity impact should be avoided as much as possible during normal use. Relative to other doors, once the paint door is damaged, it is not easy to repair, and can only be replaced, and the cost is relatively high.

If the floor itself is high and the lighting conditions of the whole space are not good, then you can install such a mirror door, and then match it with appropriate lighting, so as to improve the indoor lighting, and you will not feel depressed when you live and affect the living mood. It is generally similar to a solid wood composite door, but the center is hollow or other fillings such as straw and bamboo, and it is said that the black heart also adds cement to fill the wooden door. A fire door, as the name suggests, is a door that prevents flames from spreading.

It is generally used for fire escapes. But some people have a high sense of safety and will also choose fire doors. Or go back to the needs, your actual situation needs and you can consider.

It is to choose some trees that are older, and if they are real, such wood will have a very good sound insulation effect.

The first is the all-solid wood door, this kind of wooden door is made of natural logs as the door core, and there is the solid wood composite door, which is made of solid wood as the support and frame, and the last kind of molded wooden door, which is more recommended, because the price is lower than the first two, and the sound insulation effect is also particularly good.

Some fillers will be placed in the door, some doors will be honeycomb, which can also achieve a good sound insulation effect, some ultra-high density sound insulation materials will be placed on the door, you can also choose edging, or will wrap a layer of leather on the outside of the door, so that you can achieve the effect of sound insulation.

Soundproof doors can be used with cores, outer soundproof doors, and soundproof fire doors can also be used. When making the core soundproof door, it is necessary to fill the door with glass wool silk, and then seal the door with a sponge rubber strip. When making an outer soundproof door, you need to wrap a layer of artificial leather on the outside of the ordinary door, and then stuff rock wool inside, and finally nail it with pushpin nails, so that you can do it.

The soundproof door is composed of a door frame, a fan, (observation window) and hardware accessories, the difference between the soundproof door and the ordinary door is the sound-absorbing material of the door leaf, the door mat and the automatic bottom seal, these special designs can effectively prevent the transmission of sound waves, obtain a good sealing and soundproofing effect, in order to ensure the effect, sometimes it is necessary to install soundproof doors on the wall and the door frame with soundproof function.

The interlayer of the wall of the soundproof door is made of soundproof board, which is filled with sound-absorbing cotton or PU, and the cardboard is used to isolate the so-called honeycomb structure, and the wall interlayer is made of fireproof, environmentally friendly sound-absorbing cotton, medium-density board and damping board of multiple specifications and densities.

Soundproof doors and windows are made of plastic steel, aluminum alloy, carbon steel, and Lengsi steel plate building hardware materials, extruded into forming materials, and then made by cutting, welding or screwing.

The door is a more important facility to separate the sound from the outside world, and the quality of the door will affect the sound insulation ability. However, not all doors can have a good sound insulation effect, but sometimes it is impossible to replace the door, so it is necessary to adopt some measures to enhance the sound insulation effect of the door. Let me share how to enhance the sound insulation of the door.

1. There are many ways to enhance the sound insulation effect of the door, and one of the main reasons for the poor sound insulation effect of the door is that the gap between the doors is too large. Because there is nothing to cover this gap, it is easy for sound to reach our homes through this gap. Therefore, the best way to solve this problem is to seal these gaps, and you can use some sealing strips to fill the gaps, which is also more convenient.

2. You can use some soundproof cotton to stick to the back of the whole door, and the soundproof effect of the soundproof cotton itself is also very good, and the operation is also very easy.

3. I believe that many people will have some cardboard boxes that do not need to be used at home, and if you carefully observe the cardboard of these cartons, you will find that there is a curved wavy structure in the cardboard, which can also play a certain sound insulation effect. Filling the door with cardboard can also reduce noise.

If you are not afraid of trouble, you can install another door inside the door, and the sound insulation effect of the two doors will naturally double the effect.

1. Prevent condensation

Generally, soundproof doors and windows will be equipped with thermal insulation strips, and the temperature of their surface is very similar to the indoor temperature, so it can reduce the possibility of indoor moisture condensing in the doors and windows.

2. Water tightness

It is different from other material doors and windows. Yes, even after being used for a long time, the watertightness of this kind of doors and windows is still very good, so it can ensure that the home profile will not be damaged.

3. Energy saving

In winter, window frames with thermal insulation strips can reduce the heat loss in the roller room than ordinary large sleepy window frames; In the summer, if the air conditioner is on, the window frames of this material can also keep the room cool.

4. Protect the environment

Through the thermal insulation effect, it can reduce the consumption of various energy in the room, such as reducing the energy consumed by air conditioning and heating, and thus play a role in protecting the environment.

5. Good for health

The temperature and humidity of indoor air are closely related to human health. Therefore, the indoor temperature can be controlled by adjusting the doors and windows to achieve the most suitable environment for human habitation.

Soundproof doors mainly rely on the door leaf to achieve sound insulation. Most of these doors are made of new galvanized steel and have professional soundproofing materials, soundproofing cotton or damping acoustic panels used inside. At the same time, it is sealed in the outer frame.

Magnetron seals are common, with excellent sealing effect and increased sound insulation. The soundproof door adopts a multi-layer composite and special soundproof structure, which can withstand high temperatures and aerodynamic loads. Soundproof doors are divided into single doors and double doors, and the sound insulation effect of single doors is significantly better than that of double doors.

With viewing window, reliable sealing and flexible opening. The production of professional soundproof doors will not adopt a push-pull structure, which is not conducive to sealing treatment, and will greatly affect the overall effect of sound insulation.

Various outdoor sound sources generate vibrations and noise, which is transmitted through the air medium. When the noise reaches the soundproof glass doors and windows, it is gradually attenuated by the soundproof glass. Especially when the noise passes through the sound insulation damping glue, the medium frequency noise and high frequency noise are absorbed, distorted, dampened and attenuated by the sound insulation damping glue, which can effectively filter out the middle and high frequency noise, and then only about 5% of the noise enters the room.

According to the level of external noise, different soundproof glass combinations are adopted, and the general indoor environment can reach the national quiet standard. In the process of a large number of actual installation and application, different degrees of outdoor noise can reach below 40 decibels after being measured, analyzed and judged by experienced personnel, and can even reach 30-33 decibels in some areas, and the basement of the villa area is generally 28-32 decibels.

Doors and windows are divided into enclosure components or partition components according to their location, which is an important part of the building envelope system. Early straight-framed windows have been found in Han tombs and pottery, and there are also many brick and wooden buildings and murals in the Tang, Song, Liao, and Jin dynasties. According to different design requirements, it has the functions of heat preservation, heat insulation, sound insulation, waterproofing, fire prevention and so on.

The new requirement is energy saving, and the heat lost from the gaps between doors and windows in cold areas accounts for about 25% of the total heat consumption of heating. The airtightness requirements of doors and windows are an important part of energy-saving design. Doors and windows are also an important part of architectural modeling, so their shape, size, proportion, arrangement, color, shape, etc.

The walls mainly include load-bearing walls and non-load-bearing walls, which are mainly used as enclosures and spatial separations. The wall of the load-bearing structure building is a combination of load-bearing and enclosure, and the wall function of the skeleton structure system building is to close and separate the space. The wall should have sufficient strength and stability, and have the ability to keep warm, heat, sound, fire and waterproof.

There are many types of walls, including mono-material walls and composite walls. Considering the factors such as envelope structure, load-bearing, energy saving, and aesthetics, it is an important task for the building structure to design a reasonable wall scheme.